The author starts from the premise that omnipotence and guilt are a part of human existence. The development of them during a person's lifetime (on his road to Personality) is affected mostly by upbringing in early childhood. The psychotherapist is especially affected by the significance of the development (positive and/or negative) of omnipotence and guilt, and due to that there is even more responsibility in working with the client during psychotherapy. Seeking and finding a harmonic relationship between omnipotence and guilt in the subjective experience of the psychotherapist - who is also affected by changes in these two feelings during his personal life, as his client is - is possible to achieve by self-improvement and self-analysis of the psychotherapist that should last his whole life.